scope of application:

It is used for Marshall stability test and water immersion Marshall stability test to determine the stability and flow value of asphalt mixture specimens. It meets the requirements of JTG E20-2011 "Test Regulations for Asphalt and Asphalt Mixtures in Highway Engineering" T0709-2011.

Performance features:

Equipped with pressure overload protection, the instrument is easy to operate, provides accurate test data, and ensures stable and reliable performance. It performs automatic tests, displaying and printing stability and corresponding flow values, and plots the coordinate curve of the test piece's deformation under force. The stability and flow values are displayed on the touch screen. A standard micro printer is included. It features a manual up and down function to position the tray at an appropriate location. It can also be equipped with a dual pressure head for both large and small tests. Calibration does not require manual adjustment; the instrument can automatically set the calibration speed.

technical parameter:

1. Pressure measurement range: 0-50.00kN;

2. accuracy level: 0.5%;

3. test force measurement range: 0.4%-100%FS;

4. test force indication error: ±0.5%;

5. Resolution of test force: the maximum test force is 1/500000, and the resolution is unchanged throughout the whole process;

6. force control rate range: 0.005--5%FS/S;

7. force control rate accuracy: when the rate is less than 0.05%FS/S, it is within ±1% of the set value; when the rate is greater than or equal to 0.05%FS/S, it is within ±0.5% of the set value;

8. measurement range: 0.2%--100%FS;

9. Deformation indication error: within ±0.5% of the indication;

10. Deformation control rate range: 0.005--5%FS/S;

11. Precision of deformation control rate: when the rate is less than 0.05%FS/S, it is within ±1% of the set value; when the rate is greater than or equal to 0.05%FS/S, it is within ±0.5% of the set value;

12. loading control rate: 0.001--100mm/min;

13. Effective test height: 100mm;

14. Flow value measurement range: 0-15.00mm;

15. Sample size: 101.6*63.5mm, 152.4*95.3mm.